Blast media materials

[Chlngrcrzy]

I am getting really close to blasting my car. I have a friend with a big industrial air compressor and a sand blaster and he has loaned them to me for a weekend to do my car. I have found some Copper slag media at a local equipment rental store for $7.50 per 100# bag. 2 different grits available. Anybody ever use this before? I did a search on the internet and i could not find anything to negative about it. It is used more for water driven blasters and seems to be less of an environmental hazard. Less dust to it. 

[Slotts]

I would only recommend plastic media blasting for removing paint off the body parts.
Plastic media avoids the heat build-up that can warp the sheet metal.

Slotts

[Chlngrcrzy]

I am only doing the underside, inside, trunk area, engine compartment area, and axle and suspensions. Front fenders are off, so that i can get to that area. Rear fenders and roof are new, so they won't be needing done. Front fenders, i have already picked up 50#'s of plastic bead to do the inside and outside of the front fenders. I would think that as long as i don't concentrate the blast area to long in a spot that this copper slag stuff should be okay. It sure is cheap.

[NoMope Greg]

I know very little about blasting media, but if the copper slag is cheap, seems to me the smart thing to do is get a little bit, find a piece of scrap and blast it and see what happens.  That way, you don't ruin your car or waste a bunch of money.

[TreeFrog]

I watched a deal with baking soad was a sight, and seamed to work well.

I have never used it and my experiance is limited...

the comment was that it was ok for the ground, and coated the steel (preventing rust untill you cleaned for paint.)

[72bluNblu]

I've heard walnut shells make a good "soft' abrasive as well, good for stripping paint and engine parts like heads etc. Not sure how well the work on rust or sheet metal though.They're obviously biodegradable...